<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>2.22</title>
</head>

<body>
    <script>
        function move({ x = 0, y = 0 } = {}) {
            return [x, y];
        }
        console.log(move({ x: 3, y: 8 }));   //[3,8]
        console.log(move({ x: 3 }));   //[3,0]
        console.log(move({}));   //[0,0]
        console.log(move());   //[0,0]
    </script>
</body>

</html>